Sash-center.



H. F. YOE.

SASH GENTER.

APPLICATION FILED SEPT, 6, 11310,

Patented Dec. 19, 1911.

H. P. YOE.

SASH CENTER.

APPLIGATIUN rum) SEPT. s, 1910 Patented Dec. 19, 1911.

2 SHHBTS-SHEET 2 UNITED STATES PATENT "OFFICE.

HENRY 'F. YOE, OF DETROIT, MICHIGAN, ASSIGNOR TO THE MONARCH MANUFAC- TURING COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

SASH-GENTER.

Specification of Letters Patent.

Patented Dec. 19, 1911.

Application filed September 6, 1910. Serial No. 580,739.

To all whom it may concern.-

Be it known that l llnnnr F. You a citizen of the United States, residing at betroit, county of Wayne, State of ltlichigan.

have invented a certain new and useful Tmprovemcnt in Sash -Ccnters, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

This invention relates to sash centers, and is more especially adapted for use in connection with sashes, which both slide and turn in the window frame.

.It has for its object a sash center which may be more easily fitted and for which accurate manufacture is not so ncccssarv for the proper fitting together of the members.

A further object of this invention is a sash center, which when in position will cause a tight fit of the sashes and the memhers of the center itself and thereby more efl'ectually exclude the weather.

Another object is a sash center, which, when the opposite members are in alinement, will not readily turn so that the window may be lifted together with the auxiliary sliding sash without the chance of the members turning, but which when turned by a strong initial exertion, will thereafter turn comparatively easy.

In the drawings :-Figure 1, is an elevation of the platemcmber attached to the sliding sash. Fig. 1", is an elevation of the shell-member attached to the swing sash. Fig. 2, is a longitudinal section through the several parts which comprise the center. The central pin is in elevation. Fig. 3, is a cross section of the same )arts. The central pin is in elevation also. ig. 4, is a plan of the plate-member. Fig. 5, is a cross section at the line 55 of Fig. 4. Fig. 6, is a plan view of the clamp bar. Fig. 7, is a rear elevation of the shell-member.

The sash center comprises two housing members, either of which may be attached to the swinging sash B in which the window glass is held or to the sliding sash A, which slides vertically, in the window frame C. In the drawings the housing-member 1, which will hereinafter be called the shell-member, is attached to the swinging sash B, and the housing-member 0', which will be hereinafter called the plate-member, is shown attached to the sliding sash A. The shell-member 1 is rectangular in form and consists of a front-plate which has a rim 21 raised on its rear side. The front-plate of the shell has an aperture 1, which extends lengthwise almost. the entire length, being nearly the Width ofthe shell at the mid-point and narrowing toward each end. On the under side of the front-plate at each end a boss 4 is raised having a central notch 26. On the front of the plate screw holes are countersunk at each corner in which screws may be driven to fasten the plate to the sash. T he clamp 3 which comprises a narrow plate of substantially the same shape as the aperture in the shell member, but which is of sulficient length and breadth to prevent dropping through the aperture, is placed within the shell-member under the front-plate and its narrowed ends 27 loosely engage within the notches 26 of the bosses. On the front face of the clamp 3 is a raised portion 3, which brings the face of the clamp approximately level with the face of the shell-member. This raised portion conformsto the shape of the aperture 1, but is somewhat smaller so as to give the clamp a limited freedom of movement. These loose engaging parts permita fit of the housing-members, although they have not been accurately set. Upon the raised portion 3 a rib 4-5 is raised, which protrudes beyond the face of the shell-member. This rib is arallel to the sides of the shell-member an comprises two ste s, the step portion 4 being raised somewhat i her than the step portion 5. At the center ofthc clamp 3 is a clrcular opening 11 surrounded by a projecting hub 11 which is sunk from the back side of the clamp and which protrudes at the front beyond the shell even farther than the step portion of the rib 45. This hub projects through the aperture of the shell-member, which curves about it but is slightly spaced therefrom. The hub is provided with notches 11 diametrically opposed.

The plate-member 6 is attached to the sliding sash by screws or other fastening means and is provided on the side toward its sash with a shallow rim which bounds it on all sides. This rim serves to give the member more depth. At the center of the plate-member 6 is a circular opening 7 which has on either side notches 14 semi-circular in form. The face of the plate-member is traversed by a number of radial grooves 25 ratelyset on the sas es.

which extend from the rim of a countersunk, circular portion 10. These radial grooves, when engaged by the step 4. of the rib 4-5 allow the housing member and plate member to assume stop positions in turning; The two radial grooves which are parallel to the sides of the plate-member are each composed of two groove portions'8 and 9, the one portion 9 nearer the center of the plate being deeper than the other radial grooves to receive the step portion 4- of the clamp 3, and the more remote grooved portion 8 is shallower and adapted to receive the step portion 5. Raised on the back of the counter-sunk ortion 10 are a number of segments 20 which form a broken ring. The holding pin 12 is adapted to be passed through the central openings of the clam 3 and the plate-member 6. Lugs 15 exten at one end on either side of the holding pin and are adapted to pass through the notches 14 and 11". A head 18 confines a spiral spring 13 between itself and the projecting hub 11 of the clamp member, which acts as a shoulder or abutment to confine the spring.

In assembling the parts the holding pin is passed through t e shell member, the clamp 3, which is inclosed in the shell member, and the plate-member, the lugs passin through the notches 11 and 14. The hea is then pushed toward the plate-member causing the lugs to pass above the broken ring 20 where they are turned around until they engage between some of the segments where they are firmly held by the expansion of the spring 13. The members are then revolved one with respect tothe other so that the ends of each are exposed, and each may then be readily secured on to its sash.

As the clamp member 3 has a loose fitwithin the shell due to the narrow ends 27 fitted loosely within the notches 26, and the loose fit of the raised portion 3, the sashcenter members will fit together properly,

although the housin members are not accu- The ribs 45, engaging in the deep grooves 8--9 when the housing members are parallel, allows the faces of the two housing members to engage in close frictional contact, thereby requiring more of an exertion to turn the members with respect to each other than when the ribs 4-5 have slip d from their complementary grooves an aretraveling along the face of the plate member or resting in one .of the other radial grooves. The second portion of the turn of the window sash is there-- by freer than the initial portion of the turn. 4

It is also easier to release the members from any of the stop positions than from the initial parallel position. The rib portion '5 engaging in the deep grooves 8-9 and in connection with the spring, causes the housing faces to tightly engage, and also the sash members and forms a tight weatherstrip at the center and a tight engagement for the sashes.

What I claim is 1. A sash center, comprising in combination a shell member provided with a slot, a clamp member having a rib adapted to engage said slot, said clamp member being also provided with a central opening having notches in its edge, a plate member having a central opening which is provided with notches in its edge and radial grooves extending from said central opening, a holding pin having a pair of lugs, the said plate member on its rear side bein rovided with a segmental ring, the said hoT ing pin being adapted to be passed through the central openings and notches of both the clamp member and the plate member, and then turned to cause the lugs to rest in recesses in said segmental ring, a head on said holding pin and a spiral 5 ring adapted to engage about said ho ding pin, abutting against said head and the clamp member, thereby, holding the clamp member in close frictional relation with the plate member, substantially as described.

2. A sash center, comprising in combination a shell member provided with a slot, at clampin member adapted to en age in said slot an provided with at promoting hub having a central opening provided with oppositely disposed notches ofiset therefrom, a plate member having a counter-sunk portion com lementary to said projecting hub and in w ich said projecting hub is adapted to engage, the said counter-sunk portion havin a central opening provided with opposite y disposed ofl set notches, the said plate member being also provided with radiating grooves, a rib on the clamp ads, ted

to engage in said groove, a holding pin av; ing at one end a head and at the other erid"- a pair of oppositely disposed lugs, a segmental ring onthe rear side of the countersunk portion of the plate member, the said holdin pin being adapted to he passed throng the said opening, the lugs passing through the notches and then being turne to rest between recesses in said segmental ring, and a spring engaging about the holding pin between the sa i head and the projecting hub of the clamp member, whereb said c amp member is caused to engage wit said plate member, substantially as described.

In testimony whereof, I sign this specification in the presence of two witnesses.

HENRY F. YOE. Witnesses:

Lo'rrA Len Bani, CHARLES F. Boards.

cm .1 we Mum mnv 1'1: hfairmd (maw flnfltfl each. bv addressinz the Commissioner of Patents. 

